THE MECHANISMS OF MODIFYING AGENTS INTERACTION WITH COMPONENTS OF ADHESIVE COMPOSITIONS OF PVA DISPERSIONS

Abstract

To modify polyvinylacetate dispersions, it was proposed to use the redox complex – Fenton reagent as a source of free radicals and oxidant for individual constituents, also it was proposed to use the acid-salt complex of nitric acid and aluminium nitrate as the mixture oxidant and the structure-forming agent (due to the formation of coordination bonds with functional groups of polymeric chains).The article presents the results of theoretical studies on possible mechanisms of chemical interaction between PVA dispersion-based adhesive composition (PVAD-51P trade mark) and modifying agents; also given here are the results of experimental investigation by infrared spectroscopy in transmittance of polymeric films formed both by modified and non-modified polyvinylacetate adhesive compositions.

Keywords

• adhesive compositions
• Fenton reagent
• aluminium nitrate
• nitric acid
• polyvinylacetate
• polyvinyl alcohol
• infrared spectroscopy